*Recovery of Chromite Fines Utilizing Slon High Gradient Magnetic Separator

A major fraction of Chromite mine production is fine particles (-200 μm) which cause a serious challenge during the processing using gravity separators. From the other hands, these values need to be recovered to enhance the profitability of process and reduce the environmental impacts. Slon high gradient magnetic separator could be utilized in the processing of paramagnetic materials. In this work, the possibility of recovery of Chromite fines using a laboratory scale Slon was investigated. In this order, the effect of variables such as magnetic field intensity, particle size, matrix size and pulsing frequency was studied using the design of experiments. Results indicated that concentrate grade was dropped with increasing the magnetic field intensity. Furthermore, with a rise in pulsing frequency and a reduction in the matrix size, the concentrate grade was increased. Moreover, it was found that the concentrate grade higher than 40 % and recovery of 65-90 percent was achieved using laboratory scale Slon. Thus, it could be concluded that processing of Chromite fines using Slon is viable.